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evapotranspiration
(redirected from Potential evapotranspiration)

   Also found in: Medical, Acronyms, Wikipedia 0.01 sec.

evapotranspiration

Loss of water from the soil both by evaporation from the soil surface and by transpiration from the leaves of the plants growing on it. Factors that affect the rate of evapotranspiration include the amount of solar radiation, atmospheric vapor pressure, temperature, wind, and soil moisture. Evapotranspiration accounts for most of the water lost from the soil during the growth of a crop. Estimation of evapotranspiration rates is thus important in planning irrigation schemes.



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The researchers noticed a marked change in the scatter of data points on a graph relating mammal species richness to potential evapotranspiration, a measure of energy based on how much water would evaporate from a surface.
 
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